Home / 7,109.58-9,812.16-5,126.70

Finding the Fourth Proportional to 7,109.58, 9,812.16 and 5,126.70

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Solution

The fourth proportional to 7,109.58, 9,812.16 and 5,126.70 is: 7,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.58 : 9,812.16 = 5,126.70 : x
  2. Step 2: Convert to fraction form
    7,109.58/9,812.16 = 5,126.70/x
  3. Step 3: Cross multiply
    7,109.58x = 9,812.16 × 5,126.70
  4. Step 4: Simplify right side
    7,109.58x = 50,304,000.67
  5. Step 5: Solve for x
    x = 50,304,000.67/7,109.58
  6. Step 6: Final answer
    x = 7,075.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.